strange videoplane behavior…?

It’s been a while since I’ve worked in Max, and I hopefully am just making a simple error but…

I’m using the alpha in the color attribute to fade a videoplane. This is something I’ve done in many other patches, but I cannot figure out why it isn’t working here… It should be simple. When I turn on the metro to put the sampled matrix through, the videoplane/jit.window stays black.

Max 6.0.8
on a MBP running 10.7.5
AMD Radeon HD 6770M

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